Add cleanspec for renamed libdexfile_support test.

Bug: 124637487
Test: Buildbot style device test:
  art/tools/buildbot-build.sh -j8 --target && \
  art/tools/cleanup-buildbot-device.sh && \
  art/tools/setup-buildbot-device.sh && \
  art/tools/buildbot-sync.sh && \
  art/tools/run-gtests.sh
Change-Id: Ifb409f9e7455fd237acbce3e74c2e9e63c02ca0a
diff --git a/CleanSpec.mk b/CleanSpec.mk
index cd4e50a..f621bcb 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -57,6 +57,8 @@
 $(call add-clean-step, rm -f $(PRODUCT_OUT)/system/lib*/libandroidicu.so)
 $(call add-clean-step, rm -f $(PRODUCT_OUT)/system/lib*/libpac.so)
 
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/data/nativetest*/art_libdexfile_support_tests/dex_file_supp_test)
+
 # ************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST
 # ************************************************